Tuyere-iron



"(No Mode.)

sLoGAN.

v".lUYlIRE- IRON.`

,Patent-ed Jan. 20, 1885'.

' IJVVEWT WITNESSES 5% a ,me umm mens so'. PHoTofHo.. WASHINGTON. u. cv

UNITED STATES PATENT OFFICE.

BENJAMIN S. LOGAN, OF LEBANON, PENNSYLVANIA',

srncrrrcn'rronforming para or Letters Patent N'o. 311.017, dated January 20,1835.

` l Application tiled October '1, 18st. (No model.;

To `all whom it may concer-n:

der B. The pipe A and cylinder B are con- Be it known that 1,/ BENJAMIN S. LOGAN, a nected to veach other t their opposite endshy citizen of the United States of America, lresida casting or coiipling, D,which is provided ining at Lebanon,`in the county of Lebanon and 5 State of Pennsylvania, have invented certain Improvements .in Forgeternally with threads d engaging with the new and useful Tuyeies; and I do hereby declare the following to be a full, clear.. and exact description of the invention, such as will enable others skilled in the art to which it app'ertains to make and use the same, reference being had to the accompanying drawings, and to letters orv figures of "reference marked thereon, which form appart kof this specification.

My invention relates to certain new and useful improvements in forge-tuyeres; and it cousists in providing a tuyere with a straightblastpipe,which is surrounded by a water-tube having inlet and outlet openings which are lconzc nected to a water-tank. the parts being coupled together. at one end by a casting, and at the other end by a screw-threaded washer or plate, as" will be hereinafti" more fully set forth, and pointed out inthe claim.

In the accompanying drawings,which illus.

d' engage with the The casting or coupling Dis portion of the pipe A,

`tion 1t is provided with pipes 'are let into thesame.

These admitted into the opening D, by which means a circ so as to prevent the tuyere burning out.

to be used either in a The tuyere hereinbefore exception of the plate C, is ordinary tubing and the coupling therefor.

screw-threads. d d', the screwexternal screwthreads b upon the cylinder B, while the th reads threads a upon the pipe A. reduced at one end,as shown,so as to engage with the threaded and at this reduced poror tubes,which tubes E E' are connected to a water-tank, from which water is p F, formed between the pipe A and'the cylinder B and coupling lation is provided The tuyere hereinbefore described is adapted horizontal or vertical position, and, if desirable, a blast of air may be forced in the chamber F instead of water. described,with the manufactured of 25 l I claim trate my invention, Figure 1 is a side view, In atnyere, ablast-pipe, A,external1y screw- 'Y and Fig. 2 is a sectional View. threaded at each end, iu combination with the A represents the blast-pipe,which is externally screw-threaded at its front end, as shown at a, and at its opposite en d it is also threaded, as shown at a.

B represents the incasingcylinder, th rough which the pipe A passes, an'd said incasing-A. cylinder is attached at its front endto the blast- 35 pipe by a plate, C, which' is provided with andexternal screw-threads, as shown at c c', screw-threads engaging with the threaded portion of the pipe A, while the external threads c engage with the*1 4o threads formed on the inner side of the cylinl outer cylindrical casing,

rear end, and the, blast-pipe presence of two witnesses. y

. BENJAMIN S. LOGAN. Witnesses: E. F. Ramsar,

SAM. H. BEN'rz.

B, internally screwthreaded at its front end and externally at its connected at said rear end to by a coupling, D, having tubes E E connected thereto, and a plate, O, internally and externally screw-threaded, substantially as shown,and for the purpose set forth.

. In testimony whereof I affix my signature in 7 5- 

